Section 19 Mine (stope 4303) (Jurassic to of the United States)

Where: McKinley County, New Mexico (35.4° N, 107.8° W: paleocoordinates 30.4° N, 54.0° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Salt Wash Member (Morrison Formation), Late/Upper Oxfordian to Late/Upper Oxfordian (161.2 - 152.1 Ma)

• economic usage, "Westwater Canyon Member" synonymous with Salt Wash Member

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; fine-grained, gray, yellow sandstone

• "yellowish gray (5Y7/2), fine-grained, subrounded, moderately poorly sorted sublitharenite"

Size class: macrofossils

Collected by R. Attenberg & D. M. Russell in 1977; reposited in the NMMNH

Collection methods: salvage, quarrying, mechanical,

Primary reference: A. B. Heckert, J. A. Spielmann, S. G. Lucas, R. Altenberg, and D. A. Russell. 2003. An Upper Jurassic theropod dinosaur from the Section 19 Mine, Morrison Formation, Grants Uranium District. In: S. G. Lucas, S. C. Semken, W. Berglof, & D. Ulmer-Scholle (eds.), Geology of the Zuni Plateau. New Mexico Geological Society, Fall Field Conference Guidebook 54:309-314 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 84308: authorized by Matthew Carrano, entered by Matthew Carrano on 07.10.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Theropoda -
cf. Allosaurus sp. Marsh 1877 allosauroid
NMMNH P-38975